Home / 74,766.10-112,022.20-45,121.66

Finding the Fourth Proportional to 74,766.10, 112,022.20 and 45,121.66

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Solution

The fourth proportional to 74,766.10, 112,022.20 and 45,121.66 is: 67,605.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,766.10 : 112,022.20 = 45,121.66 : x
  2. Step 2: Convert to fraction form
    74,766.10/112,022.20 = 45,121.66/x
  3. Step 3: Cross multiply
    74,766.10x = 112,022.20 × 45,121.66
  4. Step 4: Simplify right side
    74,766.10x = 5,054,627,620.85
  5. Step 5: Solve for x
    x = 5,054,627,620.85/74,766.10
  6. Step 6: Final answer
    x = 67,605.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.